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3 years ago

What does the atomic number of an element represent?

Biology

2 answers:

mash [69]3 years ago

8 0

The atomic number of an element is the number of protons in the nucleus of an atom of that element.

Atoms with the same number of protons, but a different number of neutrons are called isotopes.

DedPeter [7]3 years ago

5 0

Answer:

In physics and chemistry, the atomic number of a chemical element is the total number of protons that each atom of that element has. It is usually represented with the letter Z.

The atoms of different elements have different numbers of electrons and protons. An atom in its natural state is neutral and has an equal number of electrons and protons. A sodium atom (Na) has an atomic number of 11; It has 11 electrons and 11 protons. A magnesium atom (Mg), has an atomic number of 12, has 12 electrons, 12 protons and a uranium atom (U), which has an atomic number of 92, has 92 electrons and 92 protons.

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Explain how an atom becomes an ion.

svlad2 [7]

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3 years ago

Antinomycin A is a poison that affects the electron transport chain and renders it nonfunctional. In the presence of Antinomycin

garik1379 [7]

Answer: options are not given, here are the options.

Speed up

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The correct answer is In the presence of Antinomycin the Citric Acid Cycle would SLOW DOWN.

Explanation:

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3 years ago

What is true of NAD in cellular respiration?

Cerrena [4.2K]

D NAD is used to directly break apart the glucose molecules I believe

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3 years ago

Number the steps from when the stimulus received to when the body reacts

Natasha2012 [34]

The given question is not complete. The complete question is:

Number the steps from when a stimulus is received to when the body reacts.

The stimulus is received by sensory receptors.

Motor neurons cause muscles to contract so the body can react to the stimulus.

The brain processes the information through interneurons.

Interneurons transfer response information to motor neurons.

Sensory neurons carry stimulus information to the brain or spinal cord.

Answer:

The body of an organism like humans reacts towards each of the external stimuli of the environment like the smell of the food and even to the internal stimulus like hunger or pain. Thus, it can be considered that one is stimulated all the time and reacts towards the constituents found in the surroundings. The entire procedure of the organism reacting towards the stimuli are as follows:

1. The sensory receptors receive the stimulus.

2. The stimulus information is further carried to the spinal cord or the brain by the sensory neurons.

3. The processing of the information in the brain takes place with the assistance of interneurons.

4. After that the response information is mediated towards the motor neurons by the interneurons.

5. The motor neurons eventually result in the contraction of muscles showing that the body is reacting towards the stimulus.

3 0

3 years ago